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(No Model.)

J. R. BAKER & J. CRAIG.

SLATE PENCIL SHARPBNER. I, No. 330,666. Patented Nov. 17, 1885.

WITNESSES l/VVE/VTOBAS: $7 aao/-fM/Z Mn- M A I 05 wym 811 2 Afforney N. PLIERS Phumumn m hen Washingtu n. D4 Cv UNITED STATES PATENT OFFICE.

JACKSON BAKER AND JAMES CRAIG, OF JERSEY CITY, NEW JERSEY.

SLATE-.PENC IL SHARPENER.

SPECIFICATION forming part of Letters Patent N0. 830,666, dated November 17, 1885.

Application filed May 11, 1885. Serial No. 165,039. (No model.)

To all whom it may concern:

Be it known that we, JACKSON R. BAKER and J AMES CRAIG, both of Jersey City, county of Hudson, and State of New Jersey, have invented a new and useful Improvement in Sharpeners for Slate-Pencils, of which we declare the following to be a full, clear,

and exact specification, reference being had to the accompanying drawings, forming part thereof.

This invention has for its object an improvement on devices for sharpening slate pencils; and the invention consists in a slatepencil-sharpening. device constructed substantially in the manner hereinafter shown, described, and claimed.

In the accompanying sheet of drawings, Figure 1 is a face view of our device; Fig. 2, an edge view in section through the line 90 m, Fig. 1.

Similar letters of reference indicate like parts in the several figures.

This invention is intended for the convenienee and comfort of school-children and others who use slate-pencils, so that the users of such pencils may easily and satisfactorily bring their slate-pencils to a point. Children too small to be intrusted with pocket-knives can by our device sharpen their slate-pencils without danger of injury to themselves, and noiselessly, which is important in a schoolroom.

The invention consists of a circular plate or a disk of metal, preferably steel, having a central star-shaped opening, A, the edges of the angles or points of which are sharp. The device being intended more especially for use' by children, the disk form or circular plate with smooth periphery is adopted, for the reason that it presents no sharp points or projections by which the child might be accidentally wounded; and, besides, this disk form, with its perforation, when suspended by a ribbon, is not unlike a medal, and will therefore be kept longer in the possession than would perhaps otherwise be the case. For the purpose of introducing the ribbon, a hole, a, is made through the steel plate.

The pencil is sharpened by the device above described by simply introducing it between the angular sides of the opening and then drawing the pencil toward the operator, at

I the same time giving the pencil a slight turn at each drawing operation. The result is that as the pencil is drawn toward the angle of the opening the sharp hard edges of the opening out or scrape ofi rapidly and without noise the pencil and quickly reduce it to a point, the pointing following, as a matter of course, from drawing the pencil toward the apex of the angular opening.

It is obvious that it is immaterial which side of the device is employed for sharpening purposes, and it is equally obvious the more angular openings there are in the device, or the more points the star has, the longer will its openings remain sharp and useful.

Having now described our invention, What we claim as new, and desire to secure by Letters Patent, is-

The slate-pencil sharpener herein shown and described, the same consisting of a disk or round flat plate of steel or other hard metal having the star-shaped opening A, forming cutting or scraping edges, and means for suspending it about the person.

JACKSON R. BAKER, JAMES CRAIG. In presence of- D. A. CARPENTER, G. M. PLYMPTON. 

